Spindle



T. J. RISK Dec. 30, 1947.

SPINDLE Filed Feb. 9, 1946 Jil-IWI mi] Patented Dec. 30, 1947 UNITEDSTATES PATENT OFFICE 1 2,433,579' f SPINDLE- Themas- J. Risa centralFans, R'. I. Application February 9, 1946, SerialNoi 646,649

7' claims.' 01. 57-135) A'spindleloperates" atj' very high speeds andlbecause of' the high" speedsof operation the spindle must be accuratelycentered and dynamically balanced,`oth'erwise excessive vibration willcause faults -and 'excessive wear. Itis at times known that because oftheinountin'g of the spindle certain breakages in'the'yarn occur. l y

Oneof thewobje'c'ts' of Lthissinvention is to provide a spindlewhi`cl1""'wi1l have some resilient movement should eXces'sivetensionmomentarily exist in the yarn so thata brokenl end might be avoided andyet a'ccinstriiction which will return to dynamic balance' and centeringof the package instantly that the' excessive tension has been relieved.l`

Another object off thisI invention. isl toA provide a bolsterforthe-'fspindle'which will be rockable but heid in nie desired balancedrelation by means of the driving belt on'the whorl. y

Anotherob-'jectv of this invention is to4 movably mount the bolster byproj ding a mechanical dampening foi" thei vement which may occur.

' Anthejob'jct'ff the invention is to so movably mount theV'bolster"'tl'inaii'j lubricant will be prevented from'e'iic'ssiv*n'galong the spindle.

Another objectbf t a movable mount nlovenie't"v of" 's`pher1 m and planesurfaces.

With theseandotherobjects inview, the invention consists of certainnovelfeatures of construction, asv will'beniore-fully described andparticularly pointed out inthe appended claims.

In the accompanying drawings:

Fig. 1 is a-sectionallviewlof the spindle mountlng;

Fig. 2 is a view similar tol Fig. 1 but illustrating the spindle asbeing movedfrom its dynamically balanced and centered relation, showingthe relativepositionlof theparts'; i

Y'Fig. 3 is'fari'exploded"sectioalviw of the bolster and its mountingy'Fig. 4 is a section through'the bottom of the case and bolsterillustrating the stop against which the bolster is moved; y

, Fig. '5 isa seeiierieiiiiiiesisef Fig. 1, siiewing the driving belt;and

Fig. 6 is a fragmental section of -a modified arrangement.

In proceeding with this invention, I have provided a spherical portionon the bolster which is utilized for rockably mounting the bolster inthe case. In addition, a spherical portion is provided at anotherlocation on the bolster which is embraced by a rockable thimble having agenerally barrel-shaped outer surface. This second spherical surface islocated at-some point other than at the greatest diameter of the thimbleso that movement of the bolster will also rock this thimble. Thedirection of rocking will depend upon whether the spherical portion isabove or below the largest diameter of the thimble and the tensionnecessary to cause the movement will depend upon how much leverage itisdesired should be exerted upon the thimble for rocking the same.yThisspherical portion may be adjustable if desired for varying theresults which occur in the mounting. The mounting for the upperspherical end of the bolster is also such as to limit the movement ofoil from the-casing. The--belt engagement of the whorl is also locatedat -substan tially the center ofthe sphericalrockable mounting of thebolster.

With reference to the drawings, l0 designates the case for the spindlemounting which is provided with twoV different sized bores II and l2.This case is provided with an outer flange I3 for engagement with thespindle rail and is threaded as at lato-receive a nut to hold the flangeI3 against the spindle rail.V An oil entrance conduit l5 is provided inthe oil receiver I6* and is pro-v vided with a cover I1 hinged as-at I8.

A bolster 20 shown by itself 'in Fig. 3 consists of a cylindrical memberV2| having a solid bottom 22 and a cylindrical bore 23 dening arathe'rthin but rigid wall 2li for'thelv bolster.A At the upper end and'formedas one piece with the bolster is a spherical portionl 25 which serves torockably mountthe bolster in the case. This rockable mountingl isVprovided by'means of av section 26 having a cup formation 2l to receivethe lower partV of the spherical portion 25 and a section 28 having anlinverted cup portion 29 to receive the upper part of the `sphericalportionI 25. These two sections 26 and A23 are brought together aboutthe-spherical portion 25 and are,v together with the bolster, forcedinto the upper end of the casing Il) tohave a rm fit with the inner boreIl of thiscasing. This will rockably mount the bolster in the casearoundits bearing* in the cups 21 and 29 and will also prevent oil from beingdischarged upwardly which is located in the casing. Y

In order to control and dampen the rockable movement of the bolster inthe casing, I also provide a second spherical portion 30 which isslidable over the outer cylindrical surface 2l of the bolster. Thisportion 30 may be held in any adjusted position along the bolster byreason of a set screw 3| which is sunk thereinto. A thimble 32 has aninner cylindrical surface 33 which engages the spherical portion 30 andhas an outer barrel-like surface 34 which engages the bore il. Thisthimble may rock around its portion of greatest diameter which will beintermediate its length, and usually just above the center thereof, aspressure is applied upon it either above, as shown in Fig. 6, or below,as shown in Fig. 2, this portion of larger diameter at the point ofcontact of the spherical surface 3l) therewith. As shown in the drawing,the portion of largest diameter of this thimble is approximately at 35above the center thereof and the point of contact of the sphericalportion 30 with the cylindrical surface.

33 is below this portion of largest diameter asV at pressure or tensionwas relieved, the pull of the belt would swing the bolster back to itsupright position and pressure at the diametrically opposite side of thespherical portion would move the thimble back about its diameter 35 as apivot point to the position shown in Fig. 1.

It will be readily apparent that the spherical portion 30 may beadjusted to a lower position to increase its leverage upon the thimbleand this would be desirable in some instances.

I claim:

l. A spindle comprising a case, a bolster having Va spherical portionadjacent its upper end rocks lower end of said case for movablyreceiving the 36 in Fig. 2 or above this portion of largest diameter asat 3l in Fig. 6.

engage as` at 4I withthe step at the bottom thereof. Upon this spindle awhorl 42 is mounted having a portion 43 betweenvanges 44 and 45 to be`engaged and driven by'a belt or tape 46 in theusual manner. The tapewill extend substantially as shown at 46 in Fig. 5 and by reason of thisarrangement pull will be exerted at substantially the point of mountingof the whorl on the spindle or at 4,1 and will tend to swing the spindleand its bolster in the direction of the arrow A shown in Fig. 1. Thiswill cause the lower end of the bolster to tend to move as 'shown bydirection of lthe arrow B in Fig. 1 and movement in this direction islimited by a stop 48 positioned in the lower part of the case. This stopconsists of a bottom wall with a U-shaped flange 49 for the reception ofthe tongue end 53 of the bolster and providing an inner abutment wall5!) for the lower end of the bolster to contact and properly 'align thespindle in a Vertical dynamically balanced position. I

Should excessive tension on the yarn exist at the upper end ofvthe'spindle and in a direction opposite to the arrow A and in an amountgreater than the pull of the belt on the spindle due to the longerleverage through which it acts, the spindle and its bolster would giveby reason of the rocking of the bolster in its mounting and swing thelower 'end of the bolster from its stop and into the space 5I 'away fromthe stop wall 50, thus easing thisfexcessive tension on the yarn whichin many instances will prevent breaking of the end.

It will be understood that the case is lled with oil and oilexistsbetween the outer surface of the thimble 32 and the c-ase. Rockingof the bolster as above indicated would cause the bolster to swing fromthe step as illustrated in Fig. 2 at which time pressure would exist onthe thimble at point 36 and which being below point 35 in Fig. 2 wouldrock the thimble about this point 35 in the same direction tending tocompress the liquid which existed on one side. of the thimble and urgingit over to the other side of the thimble. This movement would thus bedampened by reason of the necessary ow of the liquid ,from one point toanother. ,Rocking of the thimble would be the reverse in Fig. 6. `Assoon as the end of said bolster providing a stop against which said beltwill swing said bolster about said spherical portion. f

2. A spindle comprising a case, a bolster having a spherical portion.adjacent its upper end rockably mounted in said case, a spindlerotatably mounted in said bolster,.a whorl on said spindle for a beltdrive, and a stop in the lower end of said case against which said beltwill swing said bolster about said spherical portion, a second sphericalportion belowsaid iirst spherical portion and a rockable thimbleembracing said second spherical portion androcked by movement of thebolster about its rockable mounting.

3.A spindle as set forth in claim 1 wherein said whorl is at `aboutopposite said spherical rockable mounting. i

4. A spindle as set forth in claim 2 wherein said thimble has a barrelshape outer surface engaging the cylindrical base of said case to rockthereon. Y

5. A spindle as set forthA in claim 2 wherein said second sphericalportion is at one side of the largest diameter of saidthimble.

6. A spindle as set forth in claim 2 wherein said second Asphericalportion is adjustable lengthwise of said bolster.

7. A spindle comprising a case, a bolster having a. spherical portionadjacent its upper end, a pair of members each cupped to receive saidspherical portion to rockably mount the same in said case, a spindlerotatably mounted in said bolster, a whorl on said spindle for a beltdrive, and a stop at the lower end of said case against which said beltwill swing said bolster about said spherical portion.

THOMAS J. RISK.

REFERENCES CITED The following references are of record inA the file ofthis patent:

UNITED ASTATES PATENTS Number Name Date 264,297 Jaquith Sept. 12, 18822,051,641 Magrath Aug. 18, 1936 2,207,896 Rothschild July- 16, 1940FOREIGN PATENTS Number Country Date 518,600 Germany Feb. 18, 1931

